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Old 05-03-2022, 01:09 PM   #17
Chuck v
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Join Date: Dec 2009
Posts: 1,026
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Hossross,

The transfer switch has the primary function to ensure that only one source of AC voltage is being fed to the various loads within the RV through the breaker panels. These transfer switches are very reliable, so any concerns about a catastrophic failure is worrying about a very rare circumstance. Some folks choose to be hyper interactive rather than trusting in modern automation, and that is a personal preference.

I will note that many coaches have MORE THAN ONE transfer switch -- since the inverter has one as well. On my 2007 Tour Master with the upgraded Magnum true sine-wave inverter, it also had an option to automatically start the generator if the bank supplying the inverter got down to a preset limit. This feature would start the generator if the inverter bank got low, and would stop the generator when it was recharged. Note that the transfer switch in the inverter itself would handle where the AC loads that were served by this inverter (such as the residential refrigerator) would be sourced. So YES, the system was specifically designed to have the generator and the inverter AC sources both present at the inverter transfer switch at the same time without concern for incident.

Any coach owner can make their own decision as to how much automation to trust and how much to supervise such systems -- much like deciding to use cruise control or not.


Chuck
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2007 Tour Master T40C
Acura MDX toad

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